Pith Number

pith:SQ4XQMPH

pith:2021:SQ4XQMPHNUPYVTLXU2XS2APVOP

not attested not anchored not stored refs pending

Metrics of constant positive curvature with conic singularities. A survey

Alexandre Eremenko

arxiv:2103.13364 v1 · 2021-03-24 · math.DG · math.CA · math.CV

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SQ4XQMPHNUPYVTLXU2XS2APVOP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

Existence and uniqueness of solutions to Liouville equation

Receipt and verification

First computed	2026-07-05T02:26:09.218949Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94397831e76d1f8acd77a6af2d01f573e41c9dc825dbf3cfea1fa2cabad130eb

Aliases

arxiv: 2103.13364 · arxiv_version: 2103.13364v1 · doi: 10.48550/arxiv.2103.13364 · pith_short_12: SQ4XQMPHNUPY · pith_short_16: SQ4XQMPHNUPYVTLX · pith_short_8: SQ4XQMPH

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SQ4XQMPHNUPYVTLXU2XS2APVOP \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 94397831e76d1f8acd77a6af2d01f573e41c9dc825dbf3cfea1fa2cabad130eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd5471b4b02a419aecd0afa143610c70de631894fe201623611d63a0f656ffa9",
    "cross_cats_sorted": [
      "math.CA",
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2021-03-24T17:41:51Z",
    "title_canon_sha256": "fa438c29e9b8f7f42a57517969230cf95aaa972ae309714c9ce94f33f69f4b66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.13364",
    "kind": "arxiv",
    "version": 1
  }
}